A combined family, two divorced people got married with their own children. Everyone in this family has a secret, and every secret is enough to destroy this family. Gu Peiyun thought she was the only one who knew all the secrets of her family, so she was forbearing and arrogant, cautious, struggling to survive on her own, and wanted to protect the family for her mother. However, time has not covered up any wounds, it just rots in invisible places. With the unexpected death of his younger brother, a bigger secret unknown to Gu Peiyun is about to be revealed to the world...